Waterweaver by Maya Gouliard

Lara has successfully raised four children on the limited resources of the wastes. Now, as she begins to search for her new purpose in life, the town well has run dry. To help her family, friends and neighbors Lara travels to Azural, the Blue Realm to try to bring the water magic back. Azural has been hidden behind a magic waterwall for generations, and they are not excited about outsiders, especially ones that bring unbelievable stories of Wastelands beyond their borders. Lara must prove herself worthy of a magic stone, and do so against the system. Oh, and did we mention the adorable baby dragon?